Ensure miscellaneous configuration settings are correct

LowLevel 1Manual reviewpostgres

Description

This recommendation covers non-regular, special files, and dynamic libraries. PostgreSQL permits local logins via the UNIX DOMAIN SOCKET and, for the most part, anyone with a legitimate Unix login account can make the attempt. Limiting PostgreSQL login attempts can be made by relocating the UNIX DOMAIN SOCKET to a subdirectory with restricted permissions.

How it is checked

Audit method: Manual review

This recommendation cannot be checked automatically. A scan lists it with these instructions when you pass --include-manual.

Run SELECT name, setting FROM pg_settings WHERE name IN ('external_pid_file','unix_socket_directories','shared_preload_libraries','dynamic_library_path','local_preload_libraries','session_preload_libraries'); and confirm each value is expected and the referenced files/directories are writable only by postgres/root.

How it is fixed

Fix method: Guidance or infrastructure patch

Correct unexpected values in postgresql.conf, restrict permissions on the referenced paths, and restart PostgreSQL.

Properties

Operating systems: Any
Tags: postgresdatabaseconfigurationmanual
Reference: CIS PostgreSQL 18 Benchmark v1.0.0 - 8.3 Ensure miscellaneous configuration settings are correct